Threshing-machine.



No. 669,73l. Patented Mar. I2, 1901.

B. E. LAW.

THBESHING MACHINE. -(No Modil) [Application filed Apr. 22, 1898.

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Patented Mar; l2, l90l.

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R. E. LAW. THRESHING MACHINE.

IAppli cation filed Apr. 22, 1888.)

(No Mode'l.)

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No. 669,73I. Patented Mar I2, 1901.

-R.-E. LAW.

TH-RESHING MACHINE.

(Application filed Apr. 22, 1698.} (No Model.) 4 Sheets-Shem 4.

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ROBERT E. LAW, OF TAPPAN, OHIO.

THRESHlNG-IVIACHINE.

SPECIFICATION forming part of Letters Patent N 0. 669,731, dated March 12, 1901.

Application filed April 22, 1898.

To ctZZ whom it may concern.-

Be it known that I, ROBERT E. LAW, a citizen of the United States, residing at Tappan, in the county of Harrison and State of Ohio, have invented certain new and useful Improvem cuts in Threshing-Machines; and I do hereby declare the following to beafull, clear, and exact description of the invention, such as will enable others skilled in the art to whichit appertai'ns to make and use the same.

My invention relates to machines for threshing and separating grain; and it consists, essentially, in certain improvements in the construction of various parts of such machines, particularly the coupling, the beater, the tailor, and agitator, and the combinations and arrangement of the same, as

will be hereinafter more fully described, and specifically set forth in the claims.

The principal objects of the invention are to improve the general efficiency of this class of machines and to simplify and cheapen the cost of construction of the same. These objects are obtained by means of the mechanism illustrated in the accompanying drawings, in which- Figure 1 illustrates a side elevation of the machine; Fig. 2, a vertical longitudinal section of the same; Fig. 3, an enlarged longitudinal section of the coupling and bandwheel; Fig. 4, a horizontal longitudinal section of the coupling, showing the connected beater in plan and cross-section Fig. 5, a top plan of the coupling and connected beater and a cross-section of the latter; Fig. 6, a plan of the heater and a cross-section of the same; Fig. 7, a top plan view of the tailer or rear straw-rack, and Fig. 8 a detail of the beaten-shaft bearing.

Referring to the several views, the numeral 1 indicates the frame of the machine, which is suitably supported upon the wheels 2 and is provided at its front end with a suitable table 3, on which the straw is fed to the strawreceiving cylinder, which is mounted on a shaft 5, journaled in suitable bearings secured to the sides of the machine. These It consists of a square core 7, of

serial No. 678A60. (No model.)

a suitable length, somewhat less than the width of the machine, provided with four centrally-bent wings 8. Each wing is preferably formed of sheet-steel bent at the center and set edgewise in the side of the core, with the apex or peak of the wing at the longitudinal center of the core at one edge of the side and the ends of the wing at the respective ends of said core at the opposite edge of the side, so that the apex or peak will be in a different parallel plane from the ends of the wing, as clearly shown in Figs. 2 and 3. The beater is mounted rigidly on a shaft 9, which has each end journaled in a rectangular bearing 10, movably set in slotted bearing-plates 11, secured to the inner and outer sides of the side walls 12 of the machine. The slots in the bearing-plates are oblong in shape, as shown in Fig. 8, so that the bearings may have a slight vertical movement, being guided in such movement by the cylindrical arms 13, which project from opposite sides of the bearings between the bearing-plates 11. One end of the beater-shaft projects beyond its bearing in the wall 12 and has rigidly mounted upon it a hub 14, having a rim 15, provided in its edge with four slots 16, in which are adapted to work four outwardly-bent arms 17 of a coupling-shaft 18. The other end of the coupling-shaft is also provided with four outwardly projecting arms 19, which are adapted to work in four slots 20, made in the inner edge of a rim 21, which is secured on the spokes 22 ofa band-wheel 23, journaled on a short shaft 24, which has its outer end secured in an oifset casting 25, bolted to the outside of the side wall of the machine. The beater is so mounted on its shaft that it revolves with the apex of the wings toward the strawreceiving cylinder and is driven by an independent belt 26 from the cylinder-shaft 5.

The numeral 27 indicates the agitator-table, which is mounted in swinging frames 28 and may be vibrated by any well-known means, as the several parts are of the usual or any approved constructionsuch, for instance, as eccentric rings, one on each outer end of the shaft 49, provided with wrist-pins and pan, which has its outer end supported from each side of the frame of the machine by a slidable connection 30 and its inner end at each side by a hinged bar 31. The upper end of each oscillatory bar is slotted for a portion of its length, and the table at each side is provided with a perforated ear 32,which is hinged between the slotted end of the bar. The lower end of the bar is pivoted on a transverse bar 33, which has its ends journaled in the side sills of the machine.

The numeral 34 indicates a vibratory tailer or straw-rack, which is mounted on a crankshaft 35 in an inclined position. The shaft is journaled in suitable bearings 36, secured to the frame of the machine, and the tailer is attached to the shaft by suitable band-staples 37. The tailer is composed of the sides 38 and bottom 39, and across its top are secured a series of transverse triangular-shaped bars 40, arranged a sufficient distance apart to permit the grain to freely pass through onto the bottom. To the inner end of the tailer, at each side thereof, is secured one end of a pitm an 41, the other end of each pitman being attached between the slotted end of each oscillatory bar 31.

The numeral 42 indicates the windmill,which is provided with the usual fan and means for driving the same, and 42 a vibratory graindischarge chute arranged in rear of said windmill. The discharge-chute has each inner side end provided with an ear 43, which is pivoted in the lower portion of the slot in the oscillatory bar.

As thus described it will be seen that the tailer, grain-table, and discharge-chute are so connect-ed that they will have the same vibratory movement in a longitudinal direction. The mechanism producing 1 the vibratory movement of these parts of the machine consists of a connecting bar or rod 44, provided centrally with a slot 45 and having one end connected to the crank-arm 46 of the crankshaft 35 and the other'end to a crank-pin 47 of an eccentric 48, secured on one end of a shaft 49, passing transversely through the machine, and having secured on its other end a band-pulley 50, which is driven from a similar pulley (not shown) on the shaft of the straw-receiving cylinder. The connectingbar is guided to some extent and steadied in its movement by means of an arm 51, secured to the side of the machine and projecting through the slot 45, a flanged nut 46 serving to prevent lateral movement of the bar. When motion is imparted to the shaft 49, it will be noted that the connecting-bar will have both an oscillatory and a reciprocatory movement and that the vertical vibrations of the tailer and the longitudinal vibrations of the tailer, discharge-chute, and grain-table will be positive and accurate. The compound movement of the tailer causes the straw as it is gradually fed up the inclined tailerto be tossed up and down, and the farther out it is fed the higher it is tossed, owing to the crank-shaft and its location.

The direction of movement of the tailer and the agitator-table is opposite in each direction-that is to say, when the tailer makes its inner movement the agitator-table makes its outward movement, and vice versa----th us facilitating the feed of the straw from the agitator-table to the tailer.

As the straw is fed into the machine by the straw-receiving cylinder the straw and flying grain are caught by the heater, and the straw, owing to the peculiar construction of the Wings, which give a shearing spread from center to each side, is spread uniformly thin over the agitator-table at the very commencement of the feeding operation, which is an object greatly desired. If the straw is not uniformly and thinly spread at the very beginning of its feed through the machine, it will pass half-way through before it becomes spread sufficiently thin for the grain to pass through the agitator-table onto the grain-table, from which it is fed to the windmill. By arranging the beater vertically movable in its bearings I am enabled to prevent choking, as it will be readily understood that in case the straw is fed rapidly into the machine the beater will automatically accommodate itself to the thickness of the straw.

The machine is provided with the usual fanning devices and with an elevator, which returns the tailings to the threshing-cylinder.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent. is

1. In a threshing-machine, the combination with a straw-receiving cylinder, of a beater composed of a core having V-shaped wings of uniform height, said beater journaled in vertically-slotted bearings, with one end of its shaft provided with a hub having a slotted rim, a coupling-shaft having one end loosely connected to the slotted rim, and the other end loosely connected to the slotted inne-r rim of a band-Wheel, and means fordriv ing the cylinder and heater, as set forth.

2. In a threshing-machine, the combination with the straw-receiving cylinder, of a beater composed of a core having centrallybent wings with the apex or peak set in a different parallel plane from the ends, and mounted rigidly on a shaft journaled in vertically-slotted bearings, one end of said shaft being provided with a hub having a slotted rim, a coupling-shaft having one end loosely connected to the slotted rim of the hub and the other end loosely connected to the slotted inner rim of the band-wheel and mounted on the stationary shaft, and means for driving the cylinder and the beater, as set forth.

3. In a threshing-machine, the combination, with a strawreceiving cylinder, of a beater mounted rigidly on a shaft journaled in vertically-slotted bearings, one end of said shaft being provided with a hub having a slotted rim, a coupling-shaft having one end loosely connected to the slotted rim of the hub and the other end loosely connected to the slotted inner rim of a band-wheel mounted on I a stationary shaft, and means fol-driving the cylinder and heater, substantially as specifled.

4. In a threshing-machine, the combination with an agitator-table, a grain-table, a tailer and a grain-discharge shoe, of two oscillatory bars to which one end of each the grain-table, tailer and discharge-shoe is connected, and a centrally-pivoted connecting bar or rod, having one end connected with a 

